Director of Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh Professor Jagat Ram on September 13 said that India is at the beginning of Covid-19 third wave. “A serosurvey conducted by PGIMER, Chandigarh among 2700 children shows 71 per cent of them have developed antibodies. It shows children won't be affected disproportionately during the third wave,” he said.